Answer:
x ≤ 7.25
Step-by-step explanation:
1) 
≤ 
<u>Distribute</u> <em>5</em> through the parenthesis.
2) ≤ 
Move the <u>variable</u> to the left side and change it's sign.
3) 
≤ 
Move the <u>constant</u> to the right side and change it's sign.
4) 
≤ 
Subtract the <u>like terms</u>.
5) 
≤ 
Divide both sides of the inequality by <em>-2</em>.
6) 
≤ 
2nd one, x^2 + 8x + 4
add 2x^2-x^2, 6x+2x, -3+7
Radius = Diameter ÷ 2 = 10 ÷ 2 = 5mm
<u>
Find Volume: </u>
Volume= πr²h
Volume = π (5)² (6) = 471.24mm³ (Nearest hundredth)
<u>Find Surface Area:</u>
Surface area = 2πr² + 2πrh
Surface area = 2π(5)² + 2π(5)(6) = 345.58 mm²
Answer: Volume = 471.24mm³ , Surface area = 345.58 mm²
Answer:
b
Step-by-step explanation:
If you simply the expression it would give you 2x+7 .
